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Ansil Cu-Au deposit, Rouyn-Noranda TE, Abitibi-Témiscamingue, Québec, Canada

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Volcanic-hosted massive sulphide (VMS) deposit with a pre-production reserve of 1.58 million tons of ore grading at 7.2% Cu, 0.9% Zn, 1.6 g/t Au and 26.5 g/t Ag. The orebody consisted of a single lens of massive sulphides, 350 m long, 150 m wide and 6 m thick on average. The deposit is unusual in that about one fifth of its volume consists of massive magnetite.
Located 14 km north of Rouyn-Noranda.

GPS coordinates taken at mine site



References:
- Galley, A.G., Jonasson, I.R., and Watkinson, D.H. (2000): Magnetite-rich calc-silicate alteration in relation to synvolcanic intrusion at the Ansil volcanogenic massive sulfide deposit, Rouyn-Noranda, Quebec, Canada. Mineralium Deposita 35, 619-637.
- Econ Geol. (1995) 90:2006-2017.





 Map Reference: 48°21'19"N , 79°7'3"W

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Group 1 - Elements
  		• Gold1.AA.05
    Au
    Group 2 - Sulphides and Sulfosalts
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Mackinawite2.CC.25
    (Fe,Ni)
     
    9
    		S
     
    8
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
    Group 4 - Oxides and Hydroxides
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Quartz4.DA.05
    SiO
     
    2
    Group 5 - Nitrates and Carbonates
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Siderite5.AB.05
    FeCO
     
    3
    Group 9 - Silicates
  		• Actinolite9.DE.10
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Allanite-(Y)9.BG.05
    {CaY}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Andradite9.AD.25
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
  		• Chamosite
    var: Daphnite    		9.EC.55
    (Fe,Mg)
     
    5
    		Al(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
  		• Clinochlore
    var: Ripidolite    		9.EC.55
    (Mg,Fe,Al)
     
    6
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
  		• Cummingtonite9.DE.05
    [ ][Mg
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Ferro-Actinolite9.DE.10
    ☐[Ca
     
    2
    		][(Fe
    2+
     
    		,Mg)
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Greenalite9.ED.15
    Fe
     
    2-3
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Grunerite9.DE.05
    [ ][Fe
    2+
    2
    		][Fe
    2+
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Hedenbergite9.DA.15
    CaFe
    2+
     
    		[Si
     
    2
    		O
     
    6
    		]
  		• Ilvaite9.BE.07
    CaFe
    2+
    2
    		Fe
    3+
     
    		[O|OH|Si
     
    2
    		O
     
    7
    		]
  		• Minnesotaite9.EC.05
    (Fe,Mg)
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
  		• Stilpnomelane9.EG.40
    (K,Ca,Na)(Fe
    2+
     
    		,Mg,Al,Fe
    3+
     
    		)
     
    8
    		(Si,Al)
     
    12
    		(O,OH)
     
    36
    		 · nH
     
    2
    		O
  		• Tremolite9.DE.10
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Unclassified Minerals
  		• 'Chlorite Group'-
  		• 'Sericite'-


    28 entries listed. 26 valid minerals.

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Quebec, Canada Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 15th Nov 2009 17:31:53